SAN DIEGO (AP) — Marine scientists say they have found what they believe to be more than 25,000 barrels that possibly contain DDT dumped off the Southern California coast near Catalina Island, where a massive underwater toxic waste site dating back to World War II has long been suspected. The 27,345 “barrel-like" objects were captured in high-resolution images as part of a study by researchers at the University of California San Diego’s Scripps Institution of Oceanography. They mapped more than 56 square miles (145 square kilometers) of seafloor between Santa Catalina Island and the Los Angeles coast in a region previously found to contain high levels of the toxic chemical in sediments and in the ecosystem.